#include <iostream>
#include <string>

using namespace std;

class OAAdmin {
private:
  string _username;
  string _password;

public:
  OAAdmin();
  OAAdmin(string username, string password);
  static OAAdmin ERROR_ADMIN;
  friend class OADataCebter;

  string username();

  bool addUser(string username, string password, string department);
  bool delUser(string username);

bool addMeetingRoom(int mid, int capacity, string roomname);
  bool delMeetingRoom(int mid);

  //   bool operator==(const OAAdmin &other) {
  //     return other._username == _username && other._password == _password;
  //   }
};